My brother, who is 36 years old, has a lot of pain in the ball of right foot. It is like a sharp pain both on the foot as well as in the toes. He is overweight with 98 kg and he is of height 5 feet 7 inches. He is taking NAC 75 painkiller. But, the pain comes back once he stops eating the painkiller. What can be done for this pain? What could be the cause? Also, his uric acid is high at 10 or 11. Please suggest some measure. Thank you.